机械设计毕业设计（论文）-文具盒塑件注射模具的设计.doc

优质资料
本科毕业设计
(2010届)
题目
文具盒塑件注射模具的设计
学院
机械工程
专业
机械设计制造及其自动化
班级
学号
学生姓名
指导教师
完成日期
2010年3月15日
摘要
塑料工业是世界上发展最快的工业之一。在日常生活中几乎每天都使用塑料制品,这些产品的大部分可由注塑成型的方法生产。众所周知,注塑成型工艺是制作各种形状的产品和以低成本制作复杂形状产品的制造工艺。
本次的毕业设计的主要内容是文具盒塑件的注塑模具设计。从塑料材料的性能分析,根据塑件的基本形状和尺寸入手,合理选择注射的成型方法。通过对塑件工艺性的分析和对模具生产条件及制造水平的掌握,制订出成形工艺卡。在制定出成形工艺卡以后,开始进行模具的结构设计。其中模具的结构设计过程包括:型腔的数目和位置的确定,模具的总体结构形式设计,动模及定模成形零件尺寸的确定,浇注系统形式及尺寸的确定,脱模方式的确定,调温及排气系统的确定,模架的选择待以上各步骤完成以后,便开始绘制模具的结构草图,根据具体尺寸校核注塑模具及注塑机的有关尺寸,并对工艺参数进行核定和计算。之后进行初步的审查对所存在的问题进行确定和修正,然后绘制模具总装配图,按装配图绘制成型零件及所有需要加工的零件工作图,同时考虑零件的加工工艺。
关键词:文具盒塑件;注塑模具;成形工艺

ABSTRACT
Plastic industry is one of the world’s fastest growing every product that is used in daily life involves the usage of plastic and most of these products can be produced by plastic injection molding method. Plastic injection molding process is well known as the manufacturing process to create products with various shapes plex geometry at low cost.
The main content of the graduation thesis is to design a plastic injection mold of the plastic pencil box. From the plastic material performance analysis, according to models a basic shape and the size obtain, reasonably selects the injection to take shape the method. we can formulate the formed craft card by the way of analysising model technological and grasping the mold working condition and manufacture level. After formulateing the formed craft card, starts to carry on the mold the structural design. Mold structural design process includes: the cavity number and the position determination, the mold overall structural style design, moves the mold and decides the mold ponents size the determination ,pours the system and  the size determination, the drawing of patterns mode determination after, adjusts warm and the exchaust pletes, then starts to draw up the mold the structure schematic diagram, according to the specific size examination injection mold and the puter related  size, and carries on the checking and putation to t